This is a rare double telescoping action figure produced by Kenner. The double telescoping refers to the lightsaber, whose tip can retract within the larger saber shell which retracts from the figure's arm (hence the name "telescope"). Kenner switched the saber to a stationary tip early on, making the the entire saber the only moving piece from the arm. Subsequently, the double telecoping sabers are hard to find pieces which can only be found on a few early productions of the 12-back Darth Vader, Luke Skywalker, and Ben Kenobi figures.